First, the variety of sources: the varieties of rice by the Jiangxi Provincial Academy of Agricultural Sciences, Institute of breeding, the use of an exceptionally strong cold tolerance of wild rice and japonica parents, "0298" for hybridization and backcross (Dongxiang wild rice / 0298 / / 02989), in _select_ion into the 1998 Watchtower, the variety Dec. 8, 2003 by Crop Variety Approval Committee of Jiangxi Province, is a japonica type, cold tolerance, and can be natural winter.
Second, characteristics and application of the results: height 110-125cm, medium loose plant type, stem stout, tough and flexible, the main stem leaf number 17 leaves, dark green leaves, leaf angle is small, straight, ear leaf, leaf pillow and sheaths are colorless, heading neat, mature green leaves, Lase good. About 14 tillers per plant, panicles of about 10, 68.3% field spike rate, spike length 23cm, with thin dense medium grain per panicle of about 133, about 107 grains per panicle seed _set_ting rate 80.4%, grain short garden, full, plush, hull thin, golden yellow, Bromus, apiculus colorless, long-7mm, width 4mm, grain weight 25.9g. For rice cultivation in Jiangxi, about the May 20 planting, sowing about 140 days and two nights for the cultivation, production by province peer experience, is 505.1 kg per mu, the winter varieties were in 2002, after regeneration of germination by expert experience in production, winter was 426.7 kg per mu yield of regeneration; stars in 2002, Wuning, all Chang, Jian, Nanchang demonstration counties had to try to grow, yield of 450 kg / mu, of which the stars for the rice Ⅱ You grow more than 63 3.1% increase for the second night of gold You Gui 99 planting and quite. The winter varieties were two years later, germination of 2003, renewable once again produced by the expert experience, winter was 405.0 kg per mu yield of regeneration.
Third, the rice quality: The Ministry of Agriculture, Chinese rice and rice products, the Quality Supervision and Testing Center and Testing Center, the twelve indicators in nine of the ministerial-level standards, two of two high-quality rice standards indicators are: rate of 83.0% brown rice, milled rice rate of 74.1%, 73.8% rate of milled rice, grain length 50mm, aspect ratio 1.7, chalky grain rate 22.0%, 1.4% chalkiness, transparency 1, alkali even 7.0, gel consistency 74mm, protein content 9.6%, 15.5% amylose, and taste good.
Fourth, suitable for planting areas and prospects: the species has been introduced in many provinces to try to grow, suitable for use in Jiangxi, Hubei, Anhui, Jiangsu, Zhejiang and other places cultivation. Because of the strong cold tolerance varieties, high yield and good quality rice growing areas in the broader prospect.
Fifth, the main cultural techniques (for reference, should local conditions):
1, timely planting, cultivating strong seedling: the variety for rice cultivation, in the mid to late planting 5 (Jiangxi), seedling sowing rate 40 kg per mu for the second night planted in early June sowing (Jiangxi), seeding rate per acre 30 kg, enough to base fertilizer applied before planting seedling, 20 kg of fertilizer applied per acre, 50 kg of calcium magnesium phosphate, thin uniform broadcast sowing and fertilizer applied weaning the wedding of a good fertilizer, cultivating with a tiller seedlings.
2, timely transplanting, rational close planting, ensure the basic seedlings: control of transplant seedling age 35 days or less, planting density of 16.5 × 20cm, or 16.5 × 16.5cm, 4-5 root basic seedling per hole plug to ensure that basic seedling 9-10 acres million people, to ensure effective ear 20 million or more per acre.
3, fertilizer and water management: field Base Fertilizers, rape cake fertilizer applied before transplanting 75 kg per mu, calcium magnesium phosphate 50 kg, 20 kg of fertilizer, fertilizer applied early, turning green promptly after transplanting fertilizer, urea 15 kg per mu, 7 kg of potassium chloride, urea Mushi then keep heading kg, increased grain weight. Slurry of water management, thin water planting, appropriate turn green water, shallow water tillering, booting enough seedlings Shaitian water, wet and dry seed Zhuang
4, pest control: The main control rice thrips, stem borers, planthoppers and patterns Village disease.
5, winter Ratooning field management: for the cultivation of rice and two nights 4913-1, may be the natural overwintering the first quarter of Prevention and Control of rice diseases and insect pests (stem borer, planthopper and disease patterns village, etc.) hazards, harvesting before the 7 - 5 kg urea applied 10 days to promote the base of the tiller buds. After harvesting, pest control once again need to stay pile height 15-25 cm, during winter, the germination period of 10 kilograms of urea Mushi, plus 10 kg of potash for the benefit of early on_set_, specific fertilizer application of rice tillering stage, 15 kg, the growth period shallow-water irrigation, and better pest and disease prevention. |
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